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Titolo:
Use of base case Jacobians in power flow solution under topological changes
Autore:
Ahmed, SS; Rahman, MM;
Indirizzi:
Bangladesh Univ Engn & Technol, Dept Elect & Elect Engn, Dhaka 1000, Bangladesh Bangladesh Univ Engn & Technol Dhaka Bangladesh 1000 ka 1000, Bangladesh Bangladesh Power Dev Board, Directorate Syst Planning, Dhaka 1000, Bangladesh Bangladesh Power Dev Board Dhaka Bangladesh 1000 Dhaka 1000, Bangladesh
Titolo Testata:
COMPUTERS & ELECTRICAL ENGINEERING
fascicolo: 1, volume: 28, anno: 2002,
pagine: 17 - 23
SICI:
0045-7906(200201)28:1<17:UOBCJI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Keywords:
power system; load flow algorithm; security assessment; computational performance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
6
Recensione:
Indirizzi per estratti:
Indirizzo: Ahmed, SS Univ Teknol Malaysia, Fac Elect Engn, Skudai 81310, JB, MalaysiaUniv Teknol Malaysia Skudai JB Malaysia 81310 310, JB, Malaysia
Citazione:
S.S. Ahmed e M.M. Rahman, "Use of base case Jacobians in power flow solution under topological changes", COMPUT ELEC, 28(1), 2002, pp. 17-23

Abstract

Fast decoupled Newton-Raphson method is the most widely used algorithm forload flow analysis needed in on-line assessment of the steady state security of a power system. To repeat the load flow analysis corresponding to thetopological changes arising from a contingency or a remedial action, usually the base case Jacobian matrices are reinverted through inverse matrix modification lemma or partial matrix refactorisation technique. The present paper proposes the use of base case Jacobians without reinversion or refactorisation and reforming only the right side vector in each iteration. A comparative performance study between the proposed and the partial refactorisation techniques regarding their on-line CPU time requirements and solution accuracy has been made by conducting extensive simulation tests on a real power system for wider spectrum of practical cases involving topological changes. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 15/01/21 alle ore 23:22:00